One lane of U.S. 60 closest to the mountain will be shut down for three weeks starting April 15, O'Connor said. This is so employees can construct a safety barrier between the hill and the road, he said.
"The safety fence will keep any debris or rocks that could come down the hill from going into the road," O'Connor said.
The state Division of Highways has approved the plan. The lane will be reopened after the safety fence is installed.
It should take employees until the end of August to dismantle the pipeline system and rail line, O'Connor said.
A winch will be installed at the top of the hill, and the pieces of dismantled pipe will be sent down the inside of a large steel pipe 30 inches in diameter. This process means another rail line will not have to be built on the side of the hill, O'Connor said.
The sections of 30-inch pipe being removed will be cut into pieces so it can fit down the last 30-inch diameter pipe, he said.
"The pieces of pipe will basically be moved down the hill on what's basically a sled inside the pipe," O'Connor said.
The lane of U.S. 60 closest to the hill will again be closed when the project is completed so the safety fence can be removed, he said. The lane should be closed the second time for three weeks in September.
Officials with the company did not have to worry about closing roads when the pipeline, which can still be seen on the hillside next to the plant, when it was constructed in the late 1920s.
"Route 60 wasn't there when the pipe line was built," O'Connor said. "It was just a dirt road then."
O'Connor has been unable to determine how much it cost to build the pipeline and railroad up the hill when the project was originally undertaken.
However, one thing for sure is that the price tag was much less than the $1.2 million it will take to dismantle it, he said.
The entire pipeline system is above ground. Workers will remove vegetation for about 5 feet to one side of the pipeline system.
"We want to remove as little vegetation as possible to cut back on erosion and for aesthetics," O'Connor said.